Add babel plugin proposal class properties to some example babel conf…

…ig and package files, remove unused constructors with property assignments in react examples, fix prettier errors for same test strings

examples/enzyme/.babelrc.js

@@ -2,4 +2,5 @@
 
 module.exports = {
   presets: ['@babel/preset-env', '@babel/preset-react'],
+  plugins: ['@babel/plugin-proposal-class-properties']
 };

examples/enzyme/package.json

@@ -8,6 +8,7 @@
   },
   "devDependencies": {
     "@babel/core": "*",
+    "@babel/plugin-proposal-class-properties": "*",
     "@babel/preset-env": "*",
     "@babel/preset-react": "*",
     "babel-jest": "*",

examples/snapshot/.babelrc.js

@@ -2,4 +2,5 @@
 
 module.exports = {
   presets: ['@babel/preset-env', '@babel/preset-react'],
+  plugins: ['@babel/plugin-proposal-class-properties']
 };

examples/snapshot/Clock.react.js

@@ -3,11 +3,7 @@
 import React from 'react';
 
 export default class Clock extends React.Component {
-  constructor() {
-    super();
-
-    this.state = {seconds: Date.now() / 1000};
-  }
+  state = {seconds: Date.now() / 1000};
 
   componentDidMount() {
     this.timerID = setInterval(() => this.tick(), 1000);

examples/snapshot/Link.react.js

@@ -8,13 +8,9 @@ const STATUS = {
 };
 
 export default class Link extends React.Component {
-  constructor() {
-    super();
-
-    this.state = {
-      class: STATUS.NORMAL,
-    };
-  }
+  state = {
+    class: STATUS.NORMAL,
+  };
 
   _onMouseEnter = () => {
     this.setState({class: STATUS.HOVERED});

examples/snapshot/package.json

@@ -7,6 +7,7 @@
   },
   "devDependencies": {
     "@babel/core": "*",
+    "@babel/plugin-proposal-class-properties": "*",
     "@babel/preset-env": "*",
     "@babel/preset-react": "*",
     "babel-jest": "*",

packages/expect/src/__tests__/__snapshots__/spyMatchers.test.js.snap

@@ -247,7 +247,7 @@ But the last call returned:
   <red>\\"foo\\"</>"
 `;
 
-exports[`lastReturnedWith works with three calls 1`] = `
+exports[`lastReturnedWith works with three calls (3rd) 1`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).not.lastReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function to not have last returned:
@@ -426,23 +426,23 @@ Expected mock function \\"named-mock\\" first call to have returned with:
 But it was <red>not called</>"
 `;
 
-exports[`nthReturnedWith incomplete recursive calls are handled properly 1`] = `
+exports[`nthReturnedWith incomplete recursive calls are handled properly  1`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).nthReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function first call to have returned with:
   <green>6</>
 But the first call <red>has not returned yet</>"
 `;
 
-exports[`nthReturnedWith incomplete recursive calls are handled properly 2`] = `
+exports[`nthReturnedWith incomplete recursive calls are handled properly  2`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).nthReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function second call to have returned with:
   <green>3</>
 But the second call <red>has not returned yet</>"
 `;
 
-exports[`nthReturnedWith incomplete recursive calls are handled properly 3`] = `
+exports[`nthReturnedWith incomplete recursive calls are handled properly  3`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).not.nthReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function third call to not have returned with:
@@ -451,7 +451,7 @@ But the third call returned exactly:
   <red>1</>"
 `;
 
-exports[`nthReturnedWith incomplete recursive calls are handled properly 4`] = `
+exports[`nthReturnedWith incomplete recursive calls are handled properly  4`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).not.nthReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function 4th call to not have returned with:
@@ -1625,7 +1625,7 @@ But the last call returned:
   <red>\\"foo\\"</>"
 `;
 
-exports[`toHaveLastReturnedWith works with three calls 1`] = `
+exports[`toHaveLastReturnedWith works with three calls (3rd) 1`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).not.toHaveLastReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function to not have last returned:
@@ -1667,23 +1667,23 @@ Expected mock function \\"named-mock\\" first call to have returned with:
 But it was <red>not called</>"
 `;
 
-exports[`toHaveNthReturnedWith incomplete recursive calls are handled properly 1`] = `
+exports[`toHaveNthReturnedWith incomplete recursive calls are handled properly  1`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).toHaveNthReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function first call to have returned with:
   <green>6</>
 But the first call <red>has not returned yet</>"
 `;
 
-exports[`toHaveNthReturnedWith incomplete recursive calls are handled properly 2`] = `
+exports[`toHaveNthReturnedWith incomplete recursive calls are handled properly  2`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).toHaveNthReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function second call to have returned with:
   <green>3</>
 But the second call <red>has not returned yet</>"
 `;
 
-exports[`toHaveNthReturnedWith incomplete recursive calls are handled properly 3`] = `
+exports[`toHaveNthReturnedWith incomplete recursive calls are handled properly  3`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).not.toHaveNthReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function third call to not have returned with:
@@ -1692,7 +1692,7 @@ But the third call returned exactly:
   <red>1</>"
 `;
 
-exports[`toHaveNthReturnedWith incomplete recursive calls are handled properly 4`] = `
+exports[`toHaveNthReturnedWith incomplete recursive calls are handled properly  4`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).not.toHaveNthReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function 4th call to not have returned with:
@@ -2009,7 +2009,7 @@ exports[`toHaveReturnedTimes includes the custom mock name in the error message
 Expected mock function \\"named-mock\\" to have returned <green>one time</>, but it returned <red>two times</>."
 `;
 
-exports[`toHaveReturnedTimes incomplete recursive calls are handled properly 1`] = `
+exports[`toHaveReturnedTimes incomplete recursive calls are handled properly (2nd) 1`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).not.toHaveReturnedTimes(</><green>2</><dim>)</>
 
 Expected mock function not to have returned <green>two times</>, but it returned exactly <red>two times</>."
@@ -2108,7 +2108,7 @@ Expected mock function \\"named-mock\\" to have returned:
 But it did <red>not return</>."
 `;
 
-exports[`toHaveReturnedWith incomplete recursive calls are handled properly 1`] = `
+exports[`toHaveReturnedWith incomplete recursive calls are handled properly (3rd) 1`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).toHaveReturnedWith(</><green>expected</><dim>)</>
 
 Expected mock function to have returned:
@@ -2404,7 +2404,7 @@ exports[`toReturnTimes includes the custom mock name in the error message 1`] =
 Expected mock function \\"named-mock\\" to have returned <green>one time</>, but it returned <red>two times</>."
 `;
 
-exports[`toReturnTimes incomplete recursive calls are handled properly 1`] = `
+exports[`toReturnTimes incomplete recursive calls are handled properly (2nd) 1`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).not.toReturnTimes(</><green>2</><dim>)</>
 
 Expected mock function not to have returned <green>two times</>, but it returned exactly <red>two times</>."
@@ -2503,7 +2503,7 @@ Expected mock function \\"named-mock\\" to have returned:
 But it did <red>not return</>."
 `;
 
-exports[`toReturnWith incomplete recursive calls are handled properly 1`] = `
+exports[`toReturnWith incomplete recursive calls are handled properly (3rd) 1`] = `
 "<dim>expect(</><red>jest.fn()</><dim>).toReturnWith(</><green>expected</><dim>)</>
 
 Expected mock function to have returned:

packages/expect/src/__tests__/spyMatchers.test.js

@@ -661,7 +661,7 @@ const jestExpect = require('../');
       ).toThrowErrorMatchingSnapshot();
     });
 
-    test(`incomplete recursive calls are handled properly`, () => {
+    test(`incomplete recursive calls are handled properly (2nd)`, () => {
       // sums up all integers from 0 -> value, using recursion
       const fn = jest.fn(value => {
         if (value === 0) {
@@ -892,7 +892,7 @@ const jestExpect = require('../');
         }).toThrowErrorMatchingSnapshot();
       });
 
-      test(`incomplete recursive calls are handled properly`, () => {
+      test(`incomplete recursive calls are handled properly (3rd)`, () => {
         // sums up all integers from 0 -> value, using recursion
         const fn = jest.fn(value => {
           if (value === 0) {
@@ -988,7 +988,7 @@ const jestExpect = require('../');
         }).toThrowErrorMatchingSnapshot();
       });
 
-      test(`incomplete recursive calls are handled properly`, () => {
+      test(`incomplete recursive calls are handled properly `, () => {
         // sums up all integers from 0 -> value, using recursion
         const fn = jest.fn(value => {
           if (value === 0) {
@@ -1027,7 +1027,7 @@ const jestExpect = require('../');
 
     const lastReturnedWith = ['toHaveLastReturnedWith', 'lastReturnedWith'];
     if (lastReturnedWith.indexOf(returnedWith) >= 0) {
-      test(`works with three calls`, () => {
+      test(`works with three calls (3rd)`, () => {
         const fn = jest.fn();
         fn.mockReturnValueOnce('foo1');
         fn.mockReturnValueOnce('foo2');